Testing general relativity in cosmology

M Ishak - Living Reviews in Relativity, 2019 - Springer
We review recent developments and results in testing general relativity (GR) at cosmological
scales. The subject has witnessed rapid growth during the last two decades with the aim of …

Constraining the parameters of generalized and viscous modified Chaplygin gas and black hole accretion in Einstein-Aether gravity

P Mukherjee, U Debnath, H Chaudhary… - The European Physical …, 2024 - Springer
In this paper, we investigate the phenomenon of the accelerated cosmic expansion in the
late universe and the mass accretion process for a four-dimensional Einstein-Aether black …

Kantowski-Sachs Einstein-æther perfect fluid models

J Latta, G Leon, A Paliathanasis - Journal of Cosmology and …, 2016 - iopscience.iop.org
Abstract We investigate Kantowski-Sachs models in Einstein-æ ther theory with a perfect
fluid source using the singularity analysis to prove the integrability of the field equations and …

Cosmologies in Horndeski's second-order vector-tensor theory

JD Barrow, M Thorsrud, K Yamamoto - Journal of High Energy Physics, 2013 - Springer
A bstract Horndeski derived a most general vector-tensor theory in which the vector field
respects the gauge symmetry and the resulting dynamical equations are of second order …

Cosmological consequences of new dark energy models in Einstein-Aether gravity

S Rani, A Jawad, K Bamba, IU Malik - Symmetry, 2019 - mdpi.com
In this paper, we reconstruct various solutions for the accelerated universe in the Einstein-
Aether theory of gravity. For this purpose, we obtain the effective density and pressure for …

Noether symmetries of Einstein-aether scalar field cosmology

Y Kucukakca, AR Akbarieh - The European Physical Journal C, 2020 - Springer
In this paper, we explore an Einstein-aether cosmological model by adding the scalar field in
which it has an interaction with the aether field. For the cosmological implications of the …

Parametrizations of dark energy model in the background of non-canonical scalar field in Einstein–Aether Gravity

M Bairagi - Physics of the Dark Universe, 2023 - Elsevier
In the present work, we try to build up an observationally feasible cosmological model within
the framework of generalized Einstein–Aether gravity using the non-canonical scalar field …

Effects of new viscosity model on cosmological evolution

J Wang, X Meng - Modern Physics Letters A, 2014 - World Scientific
Bulk viscosity has been intrinsically existing in the observational cosmos evolution with
various effects for different cosmological evolution stages endowed with complicated cosmic …

CONSTRAINING THE PREFERRED-FRAME α1, α2 PARAMETERS FROM SOLAR SYSTEM PLANETARY PRECESSIONS

L Iorio - International Journal of Modern Physics D, 2014 - World Scientific
Analytical expressions for the orbital precessions affecting the relative motion of the
components of a local binary system induced by Lorentz-violating Preferred Frame Effects …

Reconstructing f(R), f(G), f(T), and Einstein-Aether gravities from entropy-corrected (m,n) type pilgrim dark energy

U Debnath - Astrophysics and Space Science, 2015 - Springer
First, we describe the ordinary holographic dark energy (HDE),(m, n) type holographic dark
energy, entropy-corrected holographic dark energy (ECHDE) for logarithmic and power-law …